Diabolical point and conical-like diffraction in periodic plasmonic nanostructures.
Opt Express
; 18(10): 10120-6, 2010 May 10.
Article
en En
| MEDLINE
| ID: mdl-20588866
ABSTRACT
We present the formation of a singular (diabolical) point in k-space from a periodic metal-dielectric waveguide array. The singularity originates from the balance between alternating normal and anomalous coupling. We numerically demonstrate a strong diffraction anomaly (conical-like diffraction) near the singular point. We also show the evolution of the diffraction pattern with band deformation. The resultant peculiar propagation dynamics of surface plasmon polaritons could provide a new toolset for manipulating light on the nano-scale.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Refractometría
/
Resonancia por Plasmón de Superficie
/
Nanoestructuras
/
Modelos Químicos
Idioma:
En
Revista:
Opt Express
Asunto de la revista:
OFTALMOLOGIA
Año:
2010
Tipo del documento:
Article
País de afiliación:
Estados Unidos